I had an amazing time at Mong's beautiful place! You're given a spacious part of a bungalow with little personal touches (an old telephone, a typewriter, flowers) that made the place more homey. Her place is also located within 5-7 minutes to Icon Siam by foot, where you can then take a free shuttle bus to the BTS station.
Mong is probably the best airbnb host that I've met so far. Upon check in, she briefed me about the tourist areas that are nearby, gave me some tips, and even provided me with a hand-drawn map showing the landmarks of interest. Also, every morning you're treated to a delicious breakfast that she personally prepared, that you can enjoy at the small veranda attached to the bungalow. It's truly a great place to stay to enjoy one's vacation/holiday.
I will definitely be back and I would recommend her airbnb listings to anyone who is staying in Bangkok for any length of time.